Computer · Building Materials
एक अच्छे भवन निर्माण पत्थर (building stone) के लिए, इसका विशिष्ट गुरुत्व (specific gravity) आमतौर पर किससे अधिक होना चाहिए?
- 11.7
- 21.5
- 32.7✓
- 42.2
सही उत्तर देखें
2.7
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